Diversitech 6642 Hex Head Cap Screw 3/8-16 1 In. 12-pack

Product Description

The DIVERSITECH 6642 is a hex head cap screw designed for general mechanical fastening applications in HVAC, refrigeration, and related trade installations. Manufactured from low-carbon, Grade 2 steel with USS classification, these screws measure 3/8 inch in diameter with a 16-thread-per-inch pitch and a 1 inch overall length. Thread length follows the standard formula of two times the nominal diameter plus 0.25 inches. Each pack contains 12 screws, making it a practical quantity for service calls and equipment installations requiring multiple fastener points.

These hex head cap screws are suited for use in both ducted and ductless system applications. They are commonly used to secure equipment panels, brackets, mounting hardware, and structural components during HVAC unit installation or service. The 3/8 inch-16 thread pattern is a widely used coarse-thread standard found throughout residential and light commercial mechanical equipment.

Key Features

• Grade 2, low-carbon steel construction for reliable mechanical strength
• USS classified thread standard for consistent fit across compatible hardware
• 3/8 inch-16 coarse thread for broad fastener compatibility
• 1 inch length suitable for standard panel and bracket fastening
• Pack of 12 provides quantity for multi-point installations
• Compatible with both ducted and ductless system hardware

Compatibility

Designed as a standard 3/8 inch-16 hex head cap screw suitable for use in both ducted and ductless HVAC equipment applications where USS-classified Grade 2 steel fasteners are specified.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified mechanical trades using standard hex wrenches or socket drive tools sized for 3/8 inch fasteners. Always de-energize and lock out equipment before accessing panels or fastener points. Follow applicable mechanical codes and equipment manufacturer torque guidelines when securing structural or panel hardware. Do not overtighten, as Grade 2 steel has lower yield strength than higher-grade fasteners.

Technical Specifications

• Thread Size: 3/8 inch-16
• Length: 1 inch
• Thread Length: 1 inch
• Material: Low-carbon, Grade 2 Steel
• Classification: USS
• Quantity per Pack: 12
• Application: Both Ducted and Ductless

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: 6642